Q. Oxygen content can be controlled by adding which of the following materials with water?

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Q. In dissolved oxygen analyser, normally more than one condenser is used.

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Q. Which of the following indicate leakages in a condenser?

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Q. Which of the following are added for pH adjustment in sodium analyser?

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Q. Normally, electrodes measure which of the following parameters?

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Q. Which of the following represent the concentration of a solution?

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Q. Sodium selective electrode provides a good response in measurement when the pH is above which of the following values?

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Q. Which of the following are used to free bound ions or liberate bound ions?

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Q. In which part of the apparatus is the reference and ion selective electrodes placed?

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Q. The output of the electrode in sodium analyser is proportional to which of the following parameters?

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Q. Cleaning process gives accuracy and long life.

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Q. Presence of sodium sulphate in water causes corrosion in boilers.

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Q. Which of the following principles are used in silica analyser?

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Q. Which of the following is not added to the sample during analysis during silica analysis?

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Q. Which of the following detectors are used in silica analyser?

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Q. The output from both the detectors is given to which of the following devices?

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Q. If the differential amplifier gives zero as output then it infers which of the following (Reference output is given to the positive terminal and sample output is given to the negative terminal)?

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Q. If the differential amplifier gives a positive output then it infers which of the following (Reference output is given to the positive terminal and sample output is given to the negative terminal)?

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Q. If the differential amplifier gives a negative output then it infers which of the following (Reference output is given to the positive terminal and sample output is given to the negative terminal)?

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Q. Which of the following statements are true?

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